Dependence of simulation of Boreal summer tropical intraseasonal oscillations on the simulation of seasonal mean

The link between realism in simulation of the seasonal mean precipitation and summer tropical intrasea-sonal oscillations and their dependence on cumulus parameterization schemes is investigated using the Florida State University Global Spectral Model (FSUGSM). Forty-member model ensemble simulations of the northern summer season are generated for three different cumulus parameterization schemes [namely